Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/fkordon/mcc2026-input.r130-smll-177955808900165.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5973
Executing tool itstools
Input is FireWire-PT-03, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r130-smll-177955808900165
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 560K
-rw-r--r-- 1 mcc users 8.8K Mar 7 05:17 CTLCardinality.txt
-rw-r--r-- 1 mcc users 103K Mar 7 05:17 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.9K Mar 7 05:17 CTLFireability.txt
-rw-r--r-- 1 mcc users 58K Mar 7 05:17 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.6K Mar 15 10:04 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 15 10:04 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Mar 15 10:04 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 15 10:04 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Mar 7 05:17 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 115K Mar 7 05:17 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.2K Mar 7 05:17 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 71K Mar 7 05:17 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 10:04 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 15 10:04 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 86K Mar 3 18:30 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of positive values
NUM_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME FireWire-PT-03-UpperBounds-00
FORMULA_NAME FireWire-PT-03-UpperBounds-01
FORMULA_NAME FireWire-PT-03-UpperBounds-02
FORMULA_NAME FireWire-PT-03-UpperBounds-03
FORMULA_NAME FireWire-PT-03-UpperBounds-04
FORMULA_NAME FireWire-PT-03-UpperBounds-05
FORMULA_NAME FireWire-PT-03-UpperBounds-06
FORMULA_NAME FireWire-PT-03-UpperBounds-07
FORMULA_NAME FireWire-PT-03-UpperBounds-08
FORMULA_NAME FireWire-PT-03-UpperBounds-09
FORMULA_NAME FireWire-PT-03-UpperBounds-10
FORMULA_NAME FireWire-PT-03-UpperBounds-11
FORMULA_NAME FireWire-PT-03-UpperBounds-12
FORMULA_NAME FireWire-PT-03-UpperBounds-13
FORMULA_NAME FireWire-PT-03-UpperBounds-14
FORMULA_NAME FireWire-PT-03-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779797471251

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FireWire-PT-03
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202604301425
[2026-05-26 12:11:13] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-26 12:11:13] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-26 12:11:14] [INFO ] Load time of PNML (sax parser for PT used): 168 ms
[2026-05-26 12:11:14] [INFO ] Transformed 112 places.
[2026-05-26 12:11:14] [INFO ] Transformed 356 transitions.
[2026-05-26 12:11:14] [INFO ] Found NUPN structural information;
[2026-05-26 12:11:14] [INFO ] Parsed PT model containing 112 places and 356 transitions and 1308 arcs in 385 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 15 ms.
Ensure Unique test removed 53 transitions
Reduce redundant transitions removed 53 transitions.
Current structural bounds on expressions (Initiallly, because the net is safe) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-9985623253159242449.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-13902517954392011780.kers'
[2026-05-26 12:11:14] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-9985623253159242449.kers, --Pflows, --basisKERS=/tmp/petrispot-output-13902517954392011780.kers]
Normalized transition count is 270 out of 303 initially.
Culled 0 columns in 0 ms.
// Phase 1: matrix 270 rows 112 cols 894 entries
Finished phase 1 with 103 SingleSign rule and 0 generalized
[2026-05-26 12:11:14] [INFO ] Computed 9 invariants in 2 ms
Computed 9 P flows in 4 ms.
Exported basis to /tmp/petrispot-output-13902517954392011780.kers
Total runtime 5 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 10000 steps (488 resets) in 98 ms. (101 steps per ms)
FORMULA FireWire-PT-03-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-03-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-03-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-03-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-03-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-03-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-03-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-03-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-03-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-03-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-03-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-03-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40001 steps (522 resets) in 145 ms. (273 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0] Max Struct:[1, 1, 1, 1]
[2026-05-26 12:11:14] [INFO ] Flow matrix only has 271 transitions (discarded 32 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-4019216396477042036.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-6851717033332237674.kers'
[2026-05-26 12:11:14] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-4019216396477042036.kers, --Pflows, --basisKERS=/tmp/petrispot-output-6851717033332237674.kers]
Normalized transition count is 270 out of 271 initially.
Culled 0 columns in 0 ms.
// Phase 1: matrix 270 rows 112 cols 894 entries
Finished phase 1 with 103 SingleSign rule and 0 generalized
[2026-05-26 12:11:14] [INFO ] Computed 9 invariants in 1 ms
Computed 9 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-6851717033332237674.kers
Total runtime 2 ms.
[2026-05-26 12:11:15] [INFO ] [Real]Absence check using 9 positive place invariants in 18 ms returned sat
[2026-05-26 12:11:15] [INFO ] [Real]Absence check using state equation in 246 ms returned sat
[2026-05-26 12:11:15] [INFO ] State equation strengthened by 41 read => feed constraints.
[2026-05-26 12:11:15] [INFO ] [Real]Added 41 Read/Feed constraints in 31 ms returned sat
[2026-05-26 12:11:15] [INFO ] Solution in real domain found non-integer solution.
[2026-05-26 12:11:15] [INFO ] [Nat]Absence check using 9 positive place invariants in 10 ms returned sat
[2026-05-26 12:11:15] [INFO ] [Nat]Absence check using state equation in 200 ms returned sat
[2026-05-26 12:11:15] [INFO ] [Nat]Added 41 Read/Feed constraints in 24 ms returned sat
[2026-05-26 12:11:15] [INFO ] Computed and/alt/rep : 120/476/120 causal constraints (skipped 150 transitions) in 72 ms.
[2026-05-26 12:11:16] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 202 ms
[2026-05-26 12:11:16] [INFO ] Added : 13 causal constraints over 3 iterations in 691 ms. Result :sat
Minimization took 83 ms.
[2026-05-26 12:11:16] [INFO ] [Real]Absence check using 9 positive place invariants in 7 ms returned sat
[2026-05-26 12:11:16] [INFO ] [Real]Absence check using state equation in 143 ms returned sat
[2026-05-26 12:11:16] [INFO ] [Real]Added 41 Read/Feed constraints in 16 ms returned sat
[2026-05-26 12:11:16] [INFO ] Solution in real domain found non-integer solution.
[2026-05-26 12:11:16] [INFO ] [Nat]Absence check using 9 positive place invariants in 10 ms returned sat
[2026-05-26 12:11:17] [INFO ] [Nat]Absence check using state equation in 148 ms returned sat
[2026-05-26 12:11:17] [INFO ] [Nat]Added 41 Read/Feed constraints in 45 ms returned sat
[2026-05-26 12:11:17] [INFO ] Computed and/alt/rep : 120/476/120 causal constraints (skipped 150 transitions) in 59 ms.
[2026-05-26 12:11:18] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 485 ms
[2026-05-26 12:11:18] [INFO ] Added : 18 causal constraints over 4 iterations in 974 ms. Result :sat
Minimization took 72 ms.
[2026-05-26 12:11:18] [INFO ] [Real]Absence check using 9 positive place invariants in 9 ms returned sat
[2026-05-26 12:11:18] [INFO ] [Real]Absence check using state equation in 138 ms returned sat
[2026-05-26 12:11:18] [INFO ] [Real]Added 41 Read/Feed constraints in 20 ms returned sat
[2026-05-26 12:11:18] [INFO ] Solution in real domain found non-integer solution.
[2026-05-26 12:11:18] [INFO ] [Nat]Absence check using 9 positive place invariants in 11 ms returned sat
[2026-05-26 12:11:18] [INFO ] [Nat]Absence check using state equation in 142 ms returned sat
[2026-05-26 12:11:18] [INFO ] [Nat]Added 41 Read/Feed constraints in 49 ms returned sat
[2026-05-26 12:11:18] [INFO ] Computed and/alt/rep : 120/476/120 causal constraints (skipped 150 transitions) in 55 ms.
[2026-05-26 12:11:19] [INFO ] Added : 14 causal constraints over 3 iterations in 370 ms. Result :sat
Minimization took 99 ms.
[2026-05-26 12:11:19] [INFO ] [Real]Absence check using 9 positive place invariants in 9 ms returned sat
[2026-05-26 12:11:19] [INFO ] [Real]Absence check using state equation in 142 ms returned sat
[2026-05-26 12:11:19] [INFO ] [Real]Added 41 Read/Feed constraints in 18 ms returned sat
[2026-05-26 12:11:19] [INFO ] Solution in real domain found non-integer solution.
[2026-05-26 12:11:19] [INFO ] [Nat]Absence check using 9 positive place invariants in 10 ms returned sat
[2026-05-26 12:11:19] [INFO ] [Nat]Absence check using state equation in 132 ms returned sat
[2026-05-26 12:11:19] [INFO ] [Nat]Added 41 Read/Feed constraints in 27 ms returned sat
[2026-05-26 12:11:19] [INFO ] Computed and/alt/rep : 120/476/120 causal constraints (skipped 150 transitions) in 53 ms.
[2026-05-26 12:11:20] [INFO ] Added : 21 causal constraints over 5 iterations in 417 ms. Result :sat
Minimization took 110 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0] Max Struct:[1, 1, 1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 1, 1, 0] Max Struct:[1, 1, 1, 1]
FORMULA FireWire-PT-03-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL PARIKH_GUIDED_WALK
FORMULA FireWire-PT-03-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL PARIKH_GUIDED_WALK
FORMULA FireWire-PT-03-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL PARIKH_GUIDED_WALK
Support contains 1 out of 112 places. Attempting structural reductions.
Drop transitions (Removing consumers from one bounded place p102) removed 1 transitions
Starting structural reductions in REACHABILITY mode, iteration 0 : 112/112 places, 302/302 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 0 with 3 rules applied. Total rules applied 3 place count 112 transition count 299
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 1 with 1 Pre rules applied. Total rules applied 3 place count 112 transition count 298
Deduced a syphon composed of 1 places in 3 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 1 with 2 rules applied. Total rules applied 5 place count 111 transition count 298
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 8 place count 108 transition count 290
Iterating global reduction 1 with 3 rules applied. Total rules applied 11 place count 108 transition count 290
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 13 place count 106 transition count 286
Iterating global reduction 1 with 2 rules applied. Total rules applied 15 place count 106 transition count 286
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 3 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 1 with 4 rules applied. Total rules applied 19 place count 104 transition count 284
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: -7
Deduced a syphon composed of 3 places in 2 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 1 with 6 rules applied. Total rules applied 25 place count 101 transition count 291
Drop transitions (Empty/Sink Transition effects.) removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 1 with 6 rules applied. Total rules applied 31 place count 101 transition count 285
Drop transitions (Redundant composition of simpler transitions.) removed 11 transitions
Redundant transition composition rules discarded 11 transitions
Iterating global reduction 2 with 11 rules applied. Total rules applied 42 place count 101 transition count 274
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 2 with 1 rules applied. Total rules applied 43 place count 101 transition count 276
Reduce places removed 1 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 2 with 3 rules applied. Total rules applied 46 place count 100 transition count 274
Drop transitions (Redundant composition of simpler transitions.) removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 3 with 2 rules applied. Total rules applied 48 place count 100 transition count 272
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 3 with 1 rules applied. Total rules applied 49 place count 99 transition count 271
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 50 place count 98 transition count 271
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 1 Pre rules applied. Total rules applied 50 place count 98 transition count 270
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 52 place count 97 transition count 270
Applied a total of 52 rules in 291 ms. Remains 97 /112 variables (removed 15) and now considering 270/302 (removed 32) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 308 ms. Remains : 97/112 places, 270/302 transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-10836463798917784047.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-504829770155136601.kers'
[2026-05-26 12:11:21] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-10836463798917784047.kers, --Pflows, --basisKERS=/tmp/petrispot-output-504829770155136601.kers]
Normalized transition count is 242 out of 270 initially.
Culling duplicate invariants (modulo rational): removing 2 columns.
Culled 2 columns in 0 ms.
// Phase 1: matrix 242 rows 95 cols 798 entries
Finished phase 1 with 89 SingleSign rule and 0 generalized
[2026-05-26 12:11:21] [INFO ] Computed 8 invariants in 1 ms
Computed 8 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-504829770155136601.kers
Total runtime 3 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[1]
RANDOM walk for 1000000 steps (61319 resets) in 1808 ms. (552 steps per ms)
BEST_FIRST walk for 1000001 steps (15122 resets) in 513 ms. (1945 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[1]
[2026-05-26 12:11:23] [INFO ] Flow matrix only has 242 transitions (discarded 28 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-13141525610042067447.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-123354131063847467.kers'
[2026-05-26 12:11:23] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-13141525610042067447.kers, --Pflows, --basisKERS=/tmp/petrispot-output-123354131063847467.kers]
Culling duplicate invariants (modulo rational): removing 2 columns.
Culled 2 columns in 0 ms.
// Phase 1: matrix 242 rows 95 cols 798 entries
Finished phase 1 with 89 SingleSign rule and 0 generalized
[2026-05-26 12:11:23] [INFO ] Computed 8 invariants in 1 ms
Computed 8 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-123354131063847467.kers
Total runtime 3 ms.
[2026-05-26 12:11:23] [INFO ] [Real]Absence check using 8 positive place invariants in 6 ms returned sat
[2026-05-26 12:11:23] [INFO ] [Real]Absence check using state equation in 116 ms returned sat
[2026-05-26 12:11:23] [INFO ] State equation strengthened by 37 read => feed constraints.
[2026-05-26 12:11:23] [INFO ] [Real]Added 37 Read/Feed constraints in 8 ms returned sat
[2026-05-26 12:11:23] [INFO ] Solution in real domain found non-integer solution.
[2026-05-26 12:11:23] [INFO ] [Nat]Absence check using 8 positive place invariants in 6 ms returned sat
[2026-05-26 12:11:23] [INFO ] [Nat]Absence check using state equation in 111 ms returned sat
[2026-05-26 12:11:23] [INFO ] [Nat]Added 37 Read/Feed constraints in 16 ms returned sat
[2026-05-26 12:11:23] [INFO ] Computed and/alt/rep : 107/423/107 causal constraints (skipped 133 transitions) in 43 ms.
[2026-05-26 12:11:24] [INFO ] Added : 43 causal constraints over 10 iterations in 350 ms. Result :sat
Minimization took 130 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[1]
Support contains 1 out of 97 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 97/97 places, 270/270 transitions.
Applied a total of 0 rules in 14 ms. Remains 97 /97 variables (removed 0) and now considering 270/270 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 14 ms. Remains : 97/97 places, 270/270 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 97/97 places, 270/270 transitions.
Applied a total of 0 rules in 14 ms. Remains 97 /97 variables (removed 0) and now considering 270/270 (removed 0) transitions.
[2026-05-26 12:11:24] [INFO ] Flow matrix only has 242 transitions (discarded 28 similar events)
[2026-05-26 12:11:24] [INFO ] Invariant cache hit.
[2026-05-26 12:11:24] [INFO ] Implicit Places using invariants in 190 ms returned []
[2026-05-26 12:11:24] [INFO ] Flow matrix only has 242 transitions (discarded 28 similar events)
[2026-05-26 12:11:24] [INFO ] Invariant cache hit.
[2026-05-26 12:11:24] [INFO ] State equation strengthened by 37 read => feed constraints.
[2026-05-26 12:11:25] [INFO ] Implicit Places using invariants and state equation in 412 ms returned []
Implicit Place search using SMT with State Equation took 606 ms to find 0 implicit places.
[2026-05-26 12:11:25] [INFO ] Redundant transitions in 26 ms returned []
Running 268 sub problems to find dead transitions.
[2026-05-26 12:11:25] [INFO ] Flow matrix only has 242 transitions (discarded 28 similar events)
[2026-05-26 12:11:25] [INFO ] Invariant cache hit.
[2026-05-26 12:11:25] [INFO ] State equation strengthened by 37 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/96 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 268 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/96 variables, 6/13 constraints. Problems are: Problem set: 0 solved, 268 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/96 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 268 unsolved
At refinement iteration 3 (OVERLAPS) 1/97 variables, 1/14 constraints. Problems are: Problem set: 0 solved, 268 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/97 variables, 2/16 constraints. Problems are: Problem set: 0 solved, 268 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/97 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 268 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/97 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 268 unsolved
At refinement iteration 7 (OVERLAPS) 242/339 variables, 97/115 constraints. Problems are: Problem set: 0 solved, 268 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/339 variables, 37/152 constraints. Problems are: Problem set: 0 solved, 268 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/339 variables, 0/152 constraints. Problems are: Problem set: 0 solved, 268 unsolved
At refinement iteration 10 (OVERLAPS) 0/339 variables, 0/152 constraints. Problems are: Problem set: 0 solved, 268 unsolved
No progress, stopping.
After SMT solving in domain Real declared 339/339 variables, and 152 constraints, problems are : Problem set: 0 solved, 268 unsolved in 30023 ms.
Refiners :[Positive P Invariants (semi-flows): 8/8 constraints, State Equation: 97/97 constraints, ReadFeed: 37/37 constraints, PredecessorRefiner: 268/268 constraints, Known Traps: 10/10 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 268 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/96 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 268 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/96 variables, 10/17 constraints. Problems are: Problem set: 0 solved, 268 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/96 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 268 unsolved
At refinement iteration 3 (OVERLAPS) 1/97 variables, 1/18 constraints. Problems are: Problem set: 0 solved, 268 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/97 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 268 unsolved
At refinement iteration 5 (OVERLAPS) 242/339 variables, 97/115 constraints. Problems are: Problem set: 0 solved, 268 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/339 variables, 37/152 constraints. Problems are: Problem set: 0 solved, 268 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/339 variables, 268/420 constraints. Problems are: Problem set: 0 solved, 268 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/339 variables, 0/420 constraints. Problems are: Problem set: 0 solved, 268 unsolved
At refinement iteration 9 (OVERLAPS) 0/339 variables, 0/420 constraints. Problems are: Problem set: 0 solved, 268 unsolved
No progress, stopping.
After SMT solving in domain Int declared 339/339 variables, and 420 constraints, problems are : Problem set: 0 solved, 268 unsolved in 29751 ms.
Refiners :[Positive P Invariants (semi-flows): 8/8 constraints, State Equation: 97/97 constraints, ReadFeed: 37/37 constraints, PredecessorRefiner: 268/268 constraints, Known Traps: 10/10 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60125ms problems are : Problem set: 0 solved, 268 unsolved
Search for dead transitions found 0 dead transitions in 60147ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 60855 ms. Remains : 97/97 places, 270/270 transitions.
RANDOM walk for 40000 steps (2379 resets) in 997 ms. (40 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40003 steps (609 resets) in 194 ms. (205 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (642 resets) in 172 ms. (231 steps per ms) remains 2/2 properties
[2026-05-26 12:12:26] [INFO ] Flatten gal took : 248 ms
[2026-05-26 12:12:26] [INFO ] Flatten gal took : 44 ms
[2026-05-26 12:12:26] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality11270345725351204695.gal : 24 ms
[2026-05-26 12:12:26] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8885142625436461549.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality11270345725351204695.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8885142625436461549.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality8885142625436461549.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :5 after 12
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :12 after 13
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :13 after 20
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :20 after 54
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :54 after 102
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :102 after 567
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :567 after 2535
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :2535 after 28459
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :28459 after 125717
Finished probabilistic random walk after 191002 steps, run visited all 2 properties in 1064 ms. (steps per millisecond=179 )
Probabilistic random walk after 191002 steps, saw 39970 distinct states, run finished after 1071 ms. (steps per millisecond=178 ) properties seen :2
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
FORMULA FireWire-PT-03-UpperBounds-10 1 TECHNIQUES REACHABILITY_MAX
Current structural bounds on expressions (after reachability check) : Max Seen:[] Max Struct:[]
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-2380358197399949833.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-14434392996587596838.kers'
[2026-05-26 12:12:26] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-2380358197399949833.kers, --Pflows, --basisKERS=/tmp/petrispot-output-14434392996587596838.kers]
Normalized transition count is 242 out of 270 initially.
Culling duplicate invariants (modulo rational): removing 2 columns.
Culled 2 columns in 0 ms.
// Phase 1: matrix 242 rows 95 cols 798 entries
Finished phase 1 with 89 SingleSign rule and 0 generalized
[2026-05-26 12:12:26] [INFO ] Computed 8 invariants in 1 ms
Computed 8 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-14434392996587596838.kers
Total runtime 2 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[] Max Struct:[]
RANDOM walk for 1000000 steps (60600 resets) in 1470 ms. (679 steps per ms)
BEST_FIRST walk for 0 steps (0 resets) in 0 ms. (0 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 74675 ms.

BK_STOP 1779797548408

--------------------
content from stderr:

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ UpperBounds = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202604301425.jar
+ VERSION=202604301425
+ echo 'Running Version 202604301425'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

Sequence of Actions to be Executed by the VM

This is useful if one wants to reexecute the tool in the VM from the submitted image disk.

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="FireWire-PT-03"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5973"
echo " Executing tool itstools"
echo " Input is FireWire-PT-03, examination is UpperBounds"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r130-smll-177955808900165"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FireWire-PT-03.tgz
mv FireWire-PT-03 execution
cd execution
if [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "UpperBounds" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] || [ "UpperBounds" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "UpperBounds.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '' UpperBounds.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] ; then
echo "FORMULA_NAME UpperBounds"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;